The ISIL is an international standard (ISO) to uniquely identify libraries. Using the ISIL you can automatically fetch official information (Name, URL, opening hours etc.) of a library from other library databases and link library catalogs with OSM.

Where to find the ISIL

The ISIL Registration Authority hosts a list of national or institutional ISIL agencies. Libraries and library organizations have to contact their national agency to get an ISIL standard identifier.